Reducing the levels of pathogens before they become aerosolized is an option that would reduce bioaerosol pathogenicity. Several different methods can be used to accomplish this: one is to reduce the pathogen levels in the animal through vaccination, antibiotic therapy, diet modification, or on-farm hygiene and sanitation. Other processes focus on the inactivation of pathogens in animal waste. Inactivation of pathogens in manure can be achieved through its conversion to salable fertilizer, which may involve chemical disinfection and composting. The use of lagoons and biofilters may also provide an effective treatment. The treatment techniques that are most effective at reducing pathogen levels may be the most costly, so that reducing these costs will be important. Another important area for study is the impact of bioaerosols from animal operations on human health. Extensive studies have been undertaken on the impacts of bioaerosols and pathogens on human health, but these studies have focused on the indoor environment in places such as offices, hospitals, and animal sheds.

Until further research has been done, conclusions about the health issues surrounding bioaerosols cannot be reached; likewise, conclusions and recommendations concerning bioaerosol emissions cannot be formulated.



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